To fly(an aircraft) in a loop.
环行飞行在环形飞行表演中驾驶（飞机）
The usual air show was weathered out.
例行的飞行表演因天气不佳而取消。
They gave demonstration flights in Europe as well as America.
他们在欧洲以及美洲进行飞行表演。
A flight maneuver in which an aircraft flies a circular path in a vertical plane with the lateral axis of the aircraft remaining horizontal.
环飞一种飞行表演，一架飞机做垂直方向环形飞行，同时飞机侧轴保持水平
The Hero Genealogy of Chinese August 1st Aerobatic Team
“八一”飞行表演队群英谱(之四)──记表演队副队长冯义
In commemoration of the establishing diplomatic relation with France, the flight fleet of the Royal Franch came to visit China and performed a fantastic flying action.
为了纪念中法建交，法国皇家空军飞行队来华访问并做了精彩的空中飞行表演。
Then at an air show in 1976, I witnessed something inspirational.
1976年我参观一次飞行表演，目睹了一件鼓舞人心的事情。
the performance of stunts while in flight in an aircraft.
在飞机飞行时进行特技表演。
The test pilots put the new planes through their paces.
试验飞行员表演新型飞机的性能。
The stunt pilot scared them half to death
表演绝技的飞行员把他们吓得半死。
an aerobatic spectacular at the air show
航空表演中的特技飞行奇观.
The aerobatics were the best part of the show.
表演中最精彩的节目是特技飞行.
To appear at county fairs and carnivals in exhibitions of stunt flying and parachute jumping.
巡回演出在县的集市或庆祝会上出现做特技飞行或跳伞表演
a trapeze acrobat
(杂技)空中飞人表演
The aeroplanes were flying upside down and doing other stunts.
飞机正在表演倒飞和其他绝技。
Spectacular stunts, such as rolls and loops, performed in an airplane or glider.
飞行特技在飞机或滑翔机上表演的惊人特技动作，例如侧滚或翻斤斗
In misty weather, the pilots have to fly by instruments.
大雾天飞行，飞行员只得靠仪表。
IFR terminal minimums
仪表飞行天气终点极限